<?php
/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Validate
 * @subpackage Sitemap
 * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id: Loc.php 16971 2009-07-22 18:05:45Z mikaelkael $
 */

/**
 * @see Zend_Validate_Abstract
 */
require_once 'Zend/Validate/Abstract.php';

/**
 * @see Zend_Uri
 */
require_once 'Zend/Uri.php';

/**
 * Validates whether a given value is valid as a sitemap <loc> value
 *
 * @link       http://www.sitemaps.org/protocol.php Sitemaps XML format
 *
 * @category   Zend
 * @package    Zend_Validate
 * @subpackage Sitemap
 * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
class Zend_Validate_Sitemap_Loc extends Zend_Validate_Abstract
{
	/**
	 * Validation key for not valid
	 *
	 */
	const NOT_VALID = 'invalidSitemapLoc';

	/**
	 * Validation failure message template definitions
	 *
	 * @var array
	 */
	protected $_messageTemplates = array(
	self::NOT_VALID => "'%value%' is not a valid sitemap location",
	);

	/**
	 * Validates if a string is valid as a sitemap location
	 *
	 * @link http://www.sitemaps.org/protocol.php#locdef <loc>
	 *
	 * @param  string  $value  value to validate
	 * @return boolean
	 */
	public function isValid($value)
	{
		$this->_setValue($value);

		if (!is_string($value)) {
			return false;
		}

		return Zend_Uri::check($value);
	}
}
